diff --git a/gromox-1.20.tar.asc b/gromox-1.20.tar.asc
deleted file mode 100644
index d91476e..0000000
--- a/gromox-1.20.tar.asc
+++ /dev/null
@@ -1,7 +0,0 @@
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diff --git a/gromox-1.20.tar.xz b/gromox-1.20.tar.xz
deleted file mode 100644
index bf8f8fd..0000000
--- a/gromox-1.20.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:3763f2792ff99c3c28dcdb5698c9ae6b02c31719f022c07cad5f2dd062317e1e
-size 1304620
diff --git a/gromox-1.22.tar.asc b/gromox-1.22.tar.asc
new file mode 100644
index 0000000..09f283b
--- /dev/null
+++ b/gromox-1.22.tar.asc
@@ -0,0 +1,7 @@
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diff --git a/gromox-1.22.tar.xz b/gromox-1.22.tar.xz
new file mode 100644
index 0000000..e9dac25
--- /dev/null
+++ b/gromox-1.22.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:798d58b663564e3356cc816b42bed23fb180653a38eb2f1c2d522e6b2e7e1f3a
+size 1309292
diff --git a/gromox.changes b/gromox.changes
index 97eb464..9058e9f 100644
--- a/gromox.changes
+++ b/gromox.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Thu May 12 15:27:23 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 1.22
+  * service_loader: resolve crash when first module is unloadable
+  * eml2mt, exm2eml: rectify wrong serivce plugin search path
+  * eml2mt: add iCalendar and vCard file import
+  * kdb2mt: skip IPM.MessageManager FAI messages (cause Outlook
+    to sometimes refuse opening a folder)
+  * The /usr/libexec/gromox/autodiscover command has been renamed
+    to just gromox-dscli.
+
 -------------------------------------------------------------------
 Sat Apr 30 12:26:55 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/gromox.dsc b/gromox.dsc
index 96239a8..b2da6e7 100644
--- a/gromox.dsc
+++ b/gromox.dsc
@@ -1,7 +1,7 @@
 Format: 1.0
 Source: gromox
 Architecture: any
-Version: 1.20
+Version: 1.22
 DEBTRANSFORM-RELEASE: 1
 Maintainer: Gromox <null@gromox.com>
 Homepage: https://gromox.com
diff --git a/gromox.spec b/gromox.spec
index 968731f..83d158d 100644
--- a/gromox.spec
+++ b/gromox.spec
@@ -3,7 +3,7 @@
 %define _libexecdir %_prefix/libexec
 
 Name:           gromox
-Version:        1.20
+Version:        1.22
 Release:        0
 Summary:        Groupware server backend with RPC, IMAP,POP3, PHP-MAPI support
 License:        AGPL-3.0-or-later AND GPL-2.0-only AND GPL-3.0-or-later
@@ -41,6 +41,7 @@ BuildRequires:  pkgconfig(libcrypto)
 BuildRequires:  pkgconfig(libcurl)
 BuildRequires:  pkgconfig(libpff)
 BuildRequires:  pkgconfig(libssl)
+BuildRequires:  pkgconfig(libzstd)
 BuildRequires:  pkgconfig(sqlite3)
 BuildRequires:  pkgconfig(tinyxml2) >= 8
 BuildRequires:  pkgconfig(zlib)